A pickling apparatus for metal surface treatment
By using a pickling device that utilizes a motor to drive the rotation of the galvanized sheet and a hydraulic rod to control it, the problem of removing impurities from the surface of the galvanized sheet has been solved, achieving both high-efficiency pickling and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN JIACHENG NEW MATERIALS CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-02
AI Technical Summary
In existing technologies, impurities are difficult to remove from the surface of galvanized sheets during pickling, which affects the cleaning effect.
A pickling device for metal surface treatment was designed. The device uses a motor to drive the galvanized sheet to rotate in the acid solution, and combines a hydraulic rod to control the immersion depth and clamping structure of the galvanized sheet. The device removes impurities by utilizing the flushing force and centrifugal force of the acid solution.
It significantly improves pickling efficiency, ensures effective removal of impurities, enhances the applicability of the equipment to galvanized sheets of different specifications, and improves the ease and practicality of operation.
Smart Images

Figure CN224313666U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pickling technology for galvanized steel sheets, specifically a pickling device for metal surface treatment. Background Technology
[0002] Galvanized steel sheet is a steel sheet with metallic zinc as a protective layer. Through hot-dip galvanizing or electro-galvanizing processes, a dense zinc layer is coated on the surface of the steel sheet, isolating it from air and moisture, which significantly improves the corrosion resistance and service life of the steel sheet.
[0003] Patent publication number "CN222715454U" discloses "An acid pickling device for metal surface treatment, belonging to the field of metal surface treatment technology, including a support base, an acid pickling tank, and a support frame. The acid pickling tank is fixedly connected to the upper surface of the support base, and the support frame is fixedly connected to the upper surface of the acid pickling tank. A lifting mechanism is provided inside the support frame. The lifting mechanism includes a transmission chamber, which is opened inside the support frame. A forward and reverse motor is fixedly connected inside the transmission chamber. The beneficial effect of this acid pickling device for metal surface treatment is that, by setting up a lifting mechanism, when people need to clean the acid pickling solution, they only need to turn on the forward and reverse motors by controlling the switch. With the cooperation of the threaded column, threaded cap, and filter plate, it is convenient to clean the impurities in the acid pickling solution, preventing excessive impurities in the acid pickling solution due to long-term use, thus improving the acid pickling effect and practicality of the device."
[0004] In the aforementioned patent, when pickling a metal plate, the metal plate is simply immersed in the acid solution for cleaning. In this method, the impurities on the metal plate are subjected to less external force, and the impurities picked off are not easy to detach from the metal plate, thus affecting the overall cleaning effect.
[0005] Therefore, this utility model provides an acid pickling device for metal surface treatment to solve the above problems. Utility Model Content
[0006] To address the shortcomings of existing technologies, this invention provides an acid pickling device for metal surface treatment, which solves the aforementioned problems.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a pickling device for metal surface treatment, comprising a pickling tank, an auxiliary component disposed on the outside of the pickling tank, a fixing component disposed at the bottom of the auxiliary component, the fixing component being located inside the pickling tank, the auxiliary component comprising a frame, a motor fixedly installed inside the frame, the output end of the motor movably penetrating through the bottom of the frame, a rotating frame fixedly installed at the output end of the motor, the fixing component comprising a turntable, the turntable being fixedly installed at the bottom of the rotating frame, two sliding grooves being formed inside the turntable, a slider being slidably connected inside the sliding grooves, an L-shaped rod fixedly installed at the bottom of the slider, a clamping plate fixedly installed on the inner side of the bottom of the L-shaped rod, and a galvanized sheet being clamped between the two clamping plates.
[0008] Preferably, the auxiliary component includes a hydraulic rod, the output end of which is fixedly mounted on the top of the frame.
[0009] Preferably, a bracket is fixedly installed on the back of the pickling tank, and the hydraulic rod is fixedly installed on the inner side of the top of the bracket.
[0010] Preferably, a slide rod is fixedly installed inside the slide groove, and the slider is slidably connected to the outside of the slide rod.
[0011] Preferably, a screw is rotatably connected to the top of the turntable and located between the two slides. A movable block is screwed to the outside of the screw. A connecting rod is hinged between the side of the movable block and the corresponding slider. A knob is fixedly installed on the top of the screw.
[0012] Preferably, the galvanized sheet is located inside the pickling tank, and a discharge valve is fixedly installed at the bottom right side of the pickling tank.
[0013] Beneficial effects
[0014] This invention provides an acid pickling apparatus for metal surface treatment. Compared with the prior art, it has the following advantages:
[0015] 1. This pickling device for metal surface treatment uses a motor to drive the galvanized sheet to rotate in the acid solution, so that the impurities on the surface of the galvanized sheet are subjected to external forces such as the scouring force and centrifugal force of the acid solution. Compared with the traditional pickling method of simply immersing, it can more efficiently promote the removal of impurities from the surface of the metal sheet, greatly improve the pickling efficiency, effectively ensure the pickling quality, and solve the problem that the cleaning effect is affected by the difficulty in removing impurities.
[0016] 2. This pickling device for metal surface treatment, with its fixed components including knobs, screws, and moving blocks, can clamp and fix galvanized sheets of different sizes, enhancing its applicability to metal sheets of various specifications. Simultaneously, the hydraulic rod in the auxiliary components can precisely control the depth of the galvanized sheet's immersion in the acid solution and its removal operation. Combined with the discharge valve at the bottom of the pickling tank, it facilitates acid discharge. The entire device is easy to operate, has comprehensive functions, and effectively improves its practicality and ease of use. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a perspective view of the external structure of this utility model;
[0019] Figure 2 This is a three-dimensional view of the internal structure of this utility model;
[0020] Figure 3 This is a three-dimensional view of the overall structure of the auxiliary component of this utility model;
[0021] Figure 4 This is a perspective view of the top structure of the fixing component of this utility model;
[0022] Figure 5 This is a perspective view of the bottom structure of the fixing component of this utility model.
[0023] In the diagram: 1. Pickling tank; 2. Fixed assembly; 21. Turntable; 22. Slide chute; 23. Slide rod; 24. Slider; 25. Connecting rod; 26. Moving block; 27. Screw; 28. Knob; 29. L-shaped rod; 210. Clamping plate; 3. Auxiliary assembly; 31. Bracket; 32. Hydraulic rod; 33. Frame; 34. Motor; 35. Rotating frame; 4. Galvanized sheet; 5. Discharge valve. Detailed Implementation
[0024] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0025] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.
[0026] Reference Figures 1 to 5 This application provides a pickling device for metal surface treatment, including a pickling tank 1. An auxiliary component 3 is provided on the outside of the pickling tank 1, and a fixing component 2 is provided at the bottom of the auxiliary component 3. The fixing component 2 is located inside the pickling tank 1. The auxiliary component 3 includes a frame 33. A motor 34 is fixedly installed inside the frame 33. The output end of the motor 34 movably passes through the bottom of the frame 33. A rotating frame 35 is fixedly installed at the output end of the motor 34. The fixing component 2 includes a turntable 21. The turntable 21 is fixedly installed at the bottom of the rotating frame 35. Two sliding grooves 22 are opened inside the turntable 21. A slider 24 is slidably connected inside the sliding grooves 22. An L-shaped rod 29 is fixedly installed at the bottom of the slider 24. A clamping plate 210 is fixedly installed on the inner side of the bottom of the L-shaped rod 29. A galvanized sheet 4 is clamped between the two clamping plates 210.
[0027] Auxiliary component 3 includes a hydraulic rod 32, the output end of which is fixedly mounted on the top of frame 33. A bracket 31 is fixedly mounted on the back of pickling tank 1, and the hydraulic rod 32 is fixedly mounted on the inner top of bracket 31.
[0028] A screw 27 is rotatably connected to the top of the turntable 21, located between two sliding grooves 22. A moving block 26 is screwed to the outside of the screw 27. A connecting rod 25 is hinged between the side of the moving block 26 and the corresponding slider 24. A knob 28 is fixedly installed on the top of the screw 27. The galvanized sheet 4 is located inside the pickling tank 1. A discharge valve 5 is fixedly installed at the bottom right side of the pickling tank 1.
[0029] In this embodiment, after the galvanized sheet 4 is immersed in the acid solution, the motor 34 is started. The output end of the motor 34 drives the rotating frame 35 to rotate, and the rotating frame 35 drives the turntable 21 to rotate, thereby causing the galvanized sheet 4 to rotate in the acid solution. The rotation of the galvanized sheet 4 causes the impurities on its surface to be subjected to external forces such as the scouring force of the acid solution and centrifugal force. Compared with simple immersion, these external forces can more effectively promote the impurities to be removed from the surface of the galvanized sheet 4, greatly improving the pickling effect. After pickling is completed, the hydraulic rod 32 is started again, causing it to contract and drive the frame 33 to rise, lifting the galvanized sheet 4 out of the acid solution. Finally, the discharge valve 5 at the bottom right side of the pickling tank 1 is opened to discharge the acid solution in the pickling tank 1 for subsequent processing.
[0030] Reference Figures 1 to 5 In one aspect of this embodiment, a slide rod 23 is fixedly installed inside the slide groove 22, and a slider 24 is slidably connected to the outside of the slide rod 23. A screw 27 is rotatably connected to the top of the turntable 21 and located between the two slide grooves 22. A moving block 26 is screwed to the outside of the screw 27. A connecting rod 25 is hinged between the side of the moving block 26 and the corresponding slider 24. A knob 28 is fixedly installed on the top of the screw 27. The galvanized sheet 4 is located inside the pickling tank 1, and a discharge valve 5 is fixedly installed at the bottom right side of the pickling tank 1.
[0031] In this embodiment, the galvanized sheet 4 is fixed by the fixing component 2. The operator turns the knob 28, which drives the screw 27 to rotate. Since the screw 27 is screwed to the moving block 26, the moving block 26 will move up and down along the screw 27 when the screw 27 rotates. The movement of the moving block 26 pulls the slider 24 to slide along the slide bar 23 in the slide groove 22 through the connecting rod 25, thereby driving the L-shaped rod 29 and the clamping plate 210 to move, so that the two clamping plates 210 clamp and fix the galvanized sheet 4.
[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0033] Working principle: The galvanized sheet 4 is fixed by the fixing component 2. The operator turns the knob 28, which drives the screw 27 to rotate. Since the screw 27 is screwed to the moving block 26, the moving block 26 will move up and down along the screw 27 when the screw 27 rotates. The movement of the moving block 26 pulls the slider 24 through the connecting rod 25 to slide along the slide rod 23 in the slide groove 22, which in turn drives the L-shaped rod 29 and the clamping plate 210 to move, so that the two clamping plates 210 clamp and fix the galvanized sheet 4. When the galvanized sheet 4 is immersed in the acid solution, the motor 34 is started. The output end of the motor 34 drives the rotation. The frame 35 rotates, which drives the turntable 21 to rotate, thereby causing the galvanized sheet 4 to rotate in the acid solution. The rotation of the galvanized sheet 4 causes the impurities on its surface to be subjected to external forces such as the scouring force of the acid solution and centrifugal force. Compared with simple immersion, these external forces can more effectively promote the removal of impurities from the surface of the galvanized sheet 4, greatly improving the pickling effect. After pickling is completed, the hydraulic rod 32 is activated again, causing it to contract and drive the frame 33 to rise, lifting the galvanized sheet 4 out of the acid solution. Finally, the discharge valve 5 at the bottom right side of the pickling tank 1 is opened to discharge the acid solution in the pickling tank 1 for subsequent processing.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0035] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pickling apparatus for metal surface treatment, comprising a pickling tank (1), characterized in that: An auxiliary component (3) is provided on the outside of the pickling tank (1). A fixing component (2) is provided at the bottom of the auxiliary component (3). The fixing component (2) is located inside the pickling tank (1). The auxiliary component (3) includes a frame (33). A motor (34) is fixedly installed inside the frame (33). The output end of the motor (34) moves through the bottom of the frame (33). A rotating frame (35) is fixedly installed at the output end of the motor (34). The fixing component (2) includes a turntable (21). The turntable (21) is fixedly installed at the bottom of the rotating frame (35). Two sliding grooves (22) are opened inside the turntable (21). A slider (24) is slidably connected inside the sliding grooves (22). An L-shaped rod (29) is fixedly installed at the bottom of the slider (24). A clamping plate (210) is fixedly installed on the inner side of the bottom of the L-shaped rod (29). A galvanized sheet (4) is clamped between the two clamping plates (210).
2. The pickling apparatus for metal surface treatment according to claim 1, characterized in that: The auxiliary component (3) includes a hydraulic rod (32), the output end of which is fixedly mounted on the top of the frame (33).
3. The pickling apparatus for metal surface treatment according to claim 2, characterized in that: A bracket (31) is fixedly installed on the back of the pickling tank (1), and the hydraulic rod (32) is fixedly installed on the inner side of the top of the bracket (31).
4. The pickling apparatus for metal surface treatment according to claim 1, characterized in that: A slide rod (23) is fixedly installed inside the slide groove (22), and the slider (24) is slidably connected to the outside of the slide rod (23).
5. The pickling apparatus for metal surface treatment according to claim 4, characterized in that: A screw (27) is rotatably connected to the top of the turntable (21) and between the two slides (22). A moving block (26) is screwed to the outside of the screw (27). A connecting rod (25) is hinged between the side of the moving block (26) and the corresponding slider (24). A knob (28) is fixedly installed on the top of the screw (27).
6. The pickling apparatus for metal surface treatment according to claim 1, characterized in that: The galvanized sheet (4) is located inside the pickling tank (1), and a discharge valve (5) is fixedly installed at the bottom right side of the pickling tank (1).